Kohler M340 — Electrical Operation Test

Operation · Automatic transfer switch

For the Kohler M340, from the Kohler service manual.

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Procedure

1. Press and hold the test pushbutton for 15 seconds.
2. The generator set should start and run after the time delay engine start (TDES) completed timing.
3. The transfer switch will transfer to the emergency position after the normal-to-emergency time delay (TDNE) has completed timing.
4. Release the test pushbutton. The transfer switch retransfers to normal after the emergency-to-normal time delay.
5. Time delay engine cooldown (TDEC) allows the engine to continue running for an unloaded running time.
6. Close load circuit breaker(s) when loads may be safely energized.

Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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